Rain stops play!

Rain stops play!

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TVTrev

Original Poster:

77 posts

148 months

Saturday 30th August 2014
quotequote all
I had great bank holiday weekend out in my Chim; that was until the Monday when it peed it down all day.

Unfortunately I didn't manage to get the car back in the garage tucked up nice a dry and when I tried to start in Tuesday morning it turned over but wouldn't fire.
I then discovered that the passenger footwell had 2" of water and the ECU and relays were bathing in it. Arrg!

I couldn't do anything but cover the car up this week and keep the ECU and relays on the passenger seat to dry out.

This morning I decided to tackle the problem. I replaced the relays and tried to start the car. It turned over again but didn't fire.

The fuel pump was not running so I checked connections and gave it 12 volts direct. It's working fine.

I then checked the inertia switch, it's working ok but is not receiving volts from ignition circuits. so no volts at the pump either.

The alarm fob open and closes the car and dash lights all come on as expected so I am now at a loss as to what it is.

Can anybody explain what each of the three relays in the ECU loom do, one is on a black connector, one on a blue connector and the other is on a black with green top connector. There are also two fuse holders in the loom, I don't know what these are for either.

Any advice kindly received.

Trev.




QBee

20,905 posts

143 months

Saturday 30th August 2014
quotequote all
I can do one of the fuses. There is an 80 amp blade fuse in a black plastic holder in the loom. It protects the electrics......so may be the issue. Not a lot works with it blown. You actually need to undo its nuts to remove it to make sure if it is intact.

s p a c e m a n

10,752 posts

147 months

Saturday 30th August 2014
quotequote all
2 Fuses? One of them is 100amp main power same as the one on the chassis rail, don't know what the other would be..

Relays..


Hedgehopper

1,537 posts

243 months

Saturday 30th August 2014
quotequote all
Previous post explains the relays etc. This might give you some extra info.

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

I have been told that the big fuse protecting the fusebox is actually 80 amp.

QBee

20,905 posts

143 months

Saturday 30th August 2014
quotequote all
This big fuse in the footwell will stop the car from running if blown. it should I believe be 80 amps,but may be 100 amps.

Not to be confused with the other 100 amp big fuse, which is between alternator and battery. This is fixed to the chassis under the car, drivers side, and will not stop the car from starting. It will stop the battery charging from the alternator if blown.

TVTrev

Original Poster:

77 posts

148 months

Saturday 30th August 2014
quotequote all
Great photo spaceman, I don't have AC so no yellow ones, but what is the green topped connector one for?

I also don't have a fuse rated at 100A only two rated 20A and 10A. The 20A was blown when I found the puddle.




QBee

20,905 posts

143 months

Saturday 30th August 2014
quotequote all
You do have an 80 amp fuse in the spaghetti on top of the battery, but might not have realised it's there. It's in line in a thick brown cable, I think, and is inside a black holder about 1.5 inches long and quite liely wrapped in black electrical tape.

I will drag my arse off the sofa, get the Leven half cover off the car, and take you a photo......back in a few minutes. hehe

s p a c e m a n

10,752 posts

147 months

Saturday 30th August 2014
quotequote all
The green one is part of the original landrover loom, we don't use it. Where in the loom were these fuses? Have you found one with a spade fuse in it, would be in a connector like this, probably with a load of insulating tape around it if your cars anything like mine hehe


TVTrev

Original Poster:

77 posts

148 months

Saturday 30th August 2014
quotequote all
Are, I haven't found one like that as yet, I think I need to have a look above the battery, mine ones are quite close to the relays.

One is in the top left of this photo.


TVTrev

Original Poster:

77 posts

148 months

Saturday 30th August 2014
quotequote all
you can also see that the blue connector has burnt through, I guess a a result of a short whilst sitting in the puddle.

My battery has been on charge all day and has reached more that 3 lights on my c-tech charger, I am suspecting it might be shot.

QBee

20,905 posts

143 months

Saturday 30th August 2014
quotequote all
Battery shot is a dfferent issue - they only have a 6 year life.

Right, the fuse. It is really buried. I pulled most of the spaghetti into the footwell and couldn't find it, but I know its there, so I pulled more wiring and eventually found it, two brown wires each side. It only comes out as far as the rear upper lip of the battery. It is in a black case with a folding top, and looks like this.


Sardonicus

18,928 posts

220 months

Saturday 30th August 2014
quotequote all
You need to open up the ECU case and check for water ingress before going any further then report back before going any further .

TVTrev

Original Poster:

77 posts

148 months

Saturday 30th August 2014
quotequote all
ECU is fine, I checked this first before I started. It was clean and dry fortunately .

My fusebox has relocated to behind the passenger seat so there is no wiring above the battery apart from the main terminals that feed the car.

How close to the fuse box is the 80 amp fuse? I might need to take out the passenger seat to gain access to the whole loom run.

s p a c e m a n

10,752 posts

147 months

Saturday 30th August 2014
quotequote all
It could be anywhere then, no one is stupid enough to put a vital fuse under carpet though so I doubt you'll need to take the seat out. It's probably closer to the battery than the fuse board..

TVTrev

Original Poster:

77 posts

148 months

Saturday 30th August 2014
quotequote all
Well most of the loom at the ECU end is exposed and it not there. I can see the two large brown wires at the fuse box end, so I can only assume that if this fuse is along the loom its behind the seat bolster, so its going to have to come out. frown

s p a c e m a n

10,752 posts

147 months

Saturday 30th August 2014
quotequote all
Have you put a multimeter onto the relay plugs to see if they're getting any voltage?

Ripley450

19 posts

141 months

Saturday 30th August 2014
quotequote all
This is a little after the horse has bolted for you but to all Chimaera owners; I had a new rear window fitted (great) but this was done in October 2013 and throughout the winter I had leakage into the passenger footwell. All winter I didn't have the roof off but as soon as I did, in Spring and replaced the hard section of the roof again all the ingress of water stopped- I assume that the company that fitted the new window just didn't quite put the roof back on square?

portzi

2,296 posts

174 months

Saturday 30th August 2014
quotequote all
TVTrev said:
Well most of the loom at the ECU end is exposed and it not there. I can see the two large brown wires at the fuse box end, so I can only assume that if this fuse is along the loom its behind the seat bolster, so its going to have to come out. frown
l take it the fuse box mod was done before you bought the car ?. l am sure the fuse will still be there. As only a dull witted person would remove it completely, or it could have been a heath Robinson job, l hope its just the fusefrown. lt just annoys me that people tinker with these cars thinking its TVR and easy to modify, but sell it on leaving a possible death trap for the unwary buyer frown. sorry rant over.

Edited by portzi on Saturday 30th August 22:49

TVTrev

Original Poster:

77 posts

148 months

Saturday 30th August 2014
quotequote all
Got the seat out and traced the loom, no sign of the fuse! The two brown wires are obvious at the fusebox end but where do they go at the other end. The loom appears to go up and inside the dash.

QBee

20,905 posts

143 months

Saturday 30th August 2014
quotequote all
I will have a look before the first sparrow has considered farting tomorrow and get back to you.